Dynamic Dropdown

Hi Everyone,

So far I have found a lot of value in this forum and I appreciate everyone taking the time to help out here. I had a question building a Dynamic Filter/Dropdown much like the screenshot found below:

So far from what I understand what would be feeding into this menu is my data set, and how good my data is would probably be the most important, but I wanted to get opinions based off the geolocation I.E the Zipcode basis.

I am unsure where to really start to learn/build an option like this, but I am looking forward to the challenge.

Thank you!

Please if anyone has any insight that would be so helpful!

I’m trying to solve similar problem.i have a A dynamic dropdown that filters a reference item, but shows all of them, I haven’t been able to filter to the current reference. .